Earlier, I mentioned defensive coordinator Mike Nolan is a Miami Dolphins addition who often gets overlooked when judging their offseason.

Then Football Outsiders editor in chief Aaron Schatz produced a piece for ESPN Insider that reminded me about addition by subtraction.

The Dolphins' defense should be substantially better simply because linebacker Akin Ayodele and safety Gibril Wilson aren't on it anymore.

Schatz compiled data on the defenders who allowed the most broken tackles, defining them this way: Either the ball carrier escapes from the grasp of the defender, or the defender is in good position for a tackle but the ball carrier jukes him out of his shoes. If the ball carrier sped by a slow defender who dived and missed, that didn't count as a broken tackle.

Ayodele was the worst among all linebackers, with 17 percent of his attempted tackles ending up broken. Wilson surprisingly didn't make the top 10 among defensive backs, but former Dolphins Andre Goodman (third at 20 percent) and Renaldo Hill (10th at 17 percent) were there.

Elsewhere in the AFC East, Bills linebacker Paul Posluszny and new Dolphins linebacker Karlos Dansby tied for sixth among the most efficient tacklers at their position, getting their tackles broken a mere 3.3 percent of the time last year.

That is a huge swing. That is the difference between stopping an opponent and forcing a punt and drives continuing. It also seemed like Ayodele was also getting worse as the season progressed last year. Five extra tackles last season could have possibly changed the outcome of a couple of games and Miami might have made the playoffs.